zfs/tests/zfs-tests/cmd/devname2devid/devname2devid.c

121 lines
2.8 KiB
C

/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <devid.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
/*
* Usage: devname2devid <devicepath>
*
* Examples:
* # ./devname2devid /dev/dsk/c1t4d0s0
* devid id1,sd@SSEAGATE_ST318404LSUN18G_3BT2G0Z300002146G4CR/a
* # ./devname2devid /dev/dsk/c1t4d0
* devid id1,sd@SSEAGATE_ST318404LSUN18G_3BT2G0Z300002146G4CR/wd
* # ./devname2devid /dev/dsk/c1t4d0s1
* devid id1,sd@SSEAGATE_ST318404LSUN18G_3BT2G0Z300002146G4CR/b
* #
*
* This program accepts a disk or disk slice path and prints a
* device id.
*
* Exit values:
* 0 - means success
* 1 - means failure
*
*/
int
main(int argc, char *argv[])
{
int fd;
ddi_devid_t devid;
char *minor_name, *devidstr, *device;
#ifdef DEBUG
devid_nmlist_t *list = NULL;
char *search_path;
int i;
#endif
if (argc == 1) {
(void) printf("%s <devicepath> [search path]\n",
argv[0]);
exit(1);
}
device = argv[1];
if ((fd = open(device, O_RDONLY|O_NDELAY)) < 0) {
perror(device);
exit(1);
}
if (devid_get(fd, &devid) != 0) {
perror("devid_get");
exit(1);
}
if (devid_get_minor_name(fd, &minor_name) != 0) {
perror("devid_get_minor_name");
exit(1);
}
if ((devidstr = devid_str_encode(devid, minor_name)) == 0) {
perror("devid_str_encode");
exit(1);
}
(void) printf("devid %s\n", devidstr);
devid_str_free(devidstr);
#ifdef DEBUG
if (argc == 3) {
search_path = argv[2];
} else {
search_path = "/dev/rdsk";
}
if (devid_deviceid_to_nmlist(search_path, devid, DEVID_MINOR_NAME_ALL,
&list)) {
perror("devid_deviceid_to_nmlist");
exit(1);
}
/* loop through list and process device names and numbers */
for (i = 0; list[i].devname != NULL; i++) {
(void) printf("devname: %s %p\n", list[i].devname, list[i].dev);
}
devid_free_nmlist(list);
#endif /* DEBUG */
devid_str_free(minor_name);
devid_free(devid);
return (0);
}